JO
QSEA

John Overdeck’s Quartzsea Acquisition Corp QSEA Stock Holding History

John Overdeck’s Portfolio QSEA Stock Details QSEA Fund Activity
Bought
Maintained
Sold
Quarter Market Value Status Shares Change in
Stake 		Trade Value Portfolio Weight Portfolio Position
2026
Q2 		– Sell
-59,288
Closed -$615K – 5540
2026
Q1 		$615K Sell
59,288
-25,982
-30% -$268K ﹤0.01% 3592
2025
Q4 		$872K Sell
85,270
-98,858
-54% -$1.01M ﹤0.01% 3020
2025
Q3 		$1.87M Sell
184,128
-76,871
-29% -$777K ﹤0.01% 2174
2025
Q2 		$2.62M Buy
+260,999
New +$2.61M ﹤0.01% 1643

Other funds holding QSEA

WRBC
W.R. Berkley Corp Greenwich, Connecticut $2.1B AUM 13.6% 1-Year Est. Return
MSU
Mizuho Securities USA New York $6.2B AUM 35.46% 1-Year Est. Return
KIM
Karpus Investment Management Pittsford, New York $3.48B AUM 10.49% 1-Year Est. Return
WCMNY
Westchester Capital Management (New York) Valhalla, New York $2.04B AUM 31.03% 1-Year Est. Return
RCM
Rivernorth Capital Management West Palm Beach, Florida $2.1B AUM 2.15% 1-Year Est. Return
WAM
Wolverine Asset Management Chicago, Illinois $11.4B AUM 5.65% 1-Year Est. Return
PAMP
Polar Asset Management Partners Toronto, Ontario, Canada $6.07B AUM 34.81% 1-Year Est. Return
AA
AQR Arbitrage Greenwich, Connecticut $7.02B AUM 31.58% 1-Year Est. Return
RC
RLH Capital Great Neck, New York $209M AUM
Hudson Bay Capital Management
Hudson Bay Capital Management Stamford, Connecticut $36.8B AUM 42.13% 1-Year Est. Return

John Overdeck's QSEA Position: Q2 2026 in Review

John Overdeck sold out of Quartzsea Acquisition Corp (QSEA) in Q2 2026, closing a stake of 59,288 shares — an estimated $615K sold.

John Overdeck first reported a position in QSEA in Q2 2025 and held it in 4 quarters. The position peaked at $2.62M in Q2 2025. 21 funds tracked by Wall St. Rank hold QSEA as of Q2 2026.

  • John Overdeck reported no remaining Quartzsea Acquisition Corp position as of Q2 2026 after selling out during the quarter.
  • John Overdeck sold 59,288 Quartzsea Acquisition Corp shares in Q2 2026, an estimated $615K.
  • John Overdeck first reported a position in Quartzsea Acquisition Corp in Q2 2025 and held it in 4 quarters.
  • John Overdeck's Quartzsea Acquisition Corp position peaked at $2.62M in Q2 2025.
  • 21 funds tracked by Wall St. Rank held Quartzsea Acquisition Corp as of Q2 2026.

Based on Two Sigma Investments's 13F filing for Q2 2026, filed 14 Aug 2026.